{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T11:07:23Z","timestamp":1788865643915,"version":"build-2803163510"},"reference-count":101,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2018,9,27]],"date-time":"2018-09-27T00:00:00Z","timestamp":1538006400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Reprod Medicine &amp; Biology"],"published-print":{"date-parts":[[2019,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In Japan, Livestock Improvement Association of Japan started commercially producing sexed bovine semen 10\u00a0years ago, and sexed bovine semen is currently used for the artificial insemination (AI) in the farms. In this review, the authors introduce the technology for sperm sexing by flow cytometry, the efforts at commercializing sexed semen in Japan, and recent field data on artificial insemination of the cattle with sexed semen.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In the procedures of the flow cytometric method, X\u2010chromosome\u2010bearing sperm and Y\u2010chromosome\u2010bearing sperm were fluorescently stained, separated from each other by analyzing the difference in the DNA content, and cryopreserved. The authors surveyed the conception rates after AI with these sperm and sex ratios of the offspring with the cooperation from livestock associations, AI technicians, and farmers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main findings (Results)<\/jats:title>\n                    <jats:p>Although AI with sexed semen was associated with lower conception rates in comparison with AI with conventional semen, the accuracy of sex selection using AI with sexed semen was beyond &gt;90%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Sexed semen produced by flow cytometry has the potential to produce offspring of the preferred sex with high accuracy and reliability. Thus, it is expected that sexed semen is used for AI more frequently in the farms.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/rmb2.12235","type":"journal-article","created":{"date-parts":[[2018,9,27]],"date-time":"2018-09-27T20:56:58Z","timestamp":1538081818000},"page":"17-26","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Bovine sperm sex\u2010selection technology in Japan"],"prefix":"10.1002","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5020-9799","authenticated-orcid":false,"given":"Yousuke","family":"Naniwa","sequence":"first","affiliation":[{"name":"Maebashi Institute of Animal Science Livestock Improvement Association of Japan, Inc.  Maebashi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiya","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Maebashi Institute of Animal Science Livestock Improvement Association of Japan, Inc.  Maebashi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Syohei","family":"Toda","sequence":"additional","affiliation":[{"name":"Maebashi Institute of Animal Science Livestock Improvement Association of Japan, Inc.  Maebashi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyoko","family":"Uchiyama","sequence":"additional","affiliation":[{"name":"Maebashi Institute of Animal Science Livestock Improvement Association of Japan, Inc.  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